LEGRAND VR61-18 Manuel De L'utilisateur page 48

Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
48 OMP06145 REV. D
UPS user manual
Manuel de l'utilisateur de l'ASI
Utilizzo dell'UPS
A5 DC VOLTAGE FAULT
The measured DC voltage is out of tolerance.
➢ The battery has reached the discharge voltage due to a power
failure.
➢ Measuring circuit failure.
1. Check the actual value of the measured DC voltage.
2. In case of mains failure, wait for the AC voltage to be restored.
3. Check which alarms are present and carry out the indicated
procedures.
4. Restart the device.
5. If the alarm persists, contact our Technical Support Service.
A6 BATTERY IN TEST
The rectifier voltage is reduced to start a short controlled discharge of
the battery.
➢ A battery test has been started automatically (if set), or manually
by the user.
1. Wait for the test to end, and check possible battery faults.
A7 BCB OPEN
The battery isolator is open.
➢ Battery isolator open.
1. Check the status of the battery isolator.
2. Check the functionality of the auxiliary contact of the isolator.
3. Check the connection between the auxiliary contact of the
isolator and the auxiliary terminals of the UPS (if provided).
4. If the alarm persists, contact our Technical Support Service.
A8 BATTERY DISCHARGE
The battery is discharging.
➢ The battery is discharging due to a mains failure.
➢ Rectifier failure.
1. Check which alarms are present and carry out the indicated
procedures.
2. If the alarm persists, contact our Technical Support Service.